Arthur J. Gallagher & Co. delivered a strong fourth quarter and full year 2025, with Q4 revenue growth exceeding 30% and organic growth of 5%. Adjusted EBITDA grew 30% in the quarter, marking the 23rd consecutive quarter of double-digit growth. For the full year, combined revenue rose 21% (6% organic) and adjusted EBITDAC increased 26%, with margins expanding 70 basis points to 35%. The company successfully integrated the Assured Partners acquisition, which contributed to over $3.5 billion in acquired annual revenue. Looking ahead to 2026, management projects brokerage organic growth of approximately 5.5% and underlying margin expansion of 40-60 basis points, supported by a robust M&A pipeline and what they describe as an 'unstoppable' culture.
| Metric | Value | Change |
|---|---|---|
| Q4 2025 Total Revenue Growth | >30% | Strong double-digit growth driven by M&A and organic contributions |
| Q4 2025 Organic Growth | 5% | In line with December commentary |
| Q4 2025 Adjusted EBITDA Growth | 30% | Marking 23rd consecutive quarter of double-digit growth |
| Q4 2025 Brokerage Adj. EBITDAC Margin | 32.2% | Underlying expansion of 50 basis points |
| FY 2025 Adjusted EBITDAC Margin | 35% | Up 70 basis points on an underlying comparable basis |
| FY 2025 Acquired Annualized Revenue | >$3.5 billion | Record high acquisition contribution |
| 2026 Brokerage Organic Growth Guidance | ~5.5% | Unchanged from previous outlook |
The integration of Assured Partners is a primary strategic focus, with management reporting they are 'ahead of plan' on back-office integration like general ledger and HR systems. The rebranding of US retail operations to 'Gallagher' has occurred. Management projects significant synergies of $160 million by 2026 and $260-$280 million by early 2028, suggesting immediate and long-term value creation from this large-scale acquisition.
Despite the massive AP acquisition, AJG continues to aggressively pursue tuck-in acquisitions. The company closed 7 deals in Q4 representing $145 million in revenue and ended the year with over $3.5 billion in acquired annual revenue. The pipeline remains robust with 40 term sheets signed representing $350 million in revenue, indicating the 'buy-and-build' strategy remains a core growth engine.
Management highlighted a divergent pricing market where property rates are down (5%) due to a quiet wind season, while casualty rates remain firm (up 5-7%). This 'tale of two markets' allows AJG to maintain organic growth of 5.5% as they counsel clients on risk retention and alternative markets, demonstrating the resilience of their brokerage model even in softening property cycles.
The CFO emphasized strong capital generation, noting the company has close to $10 billion available for M&A over the next two years without issuing stock. This financial flexibility supports their aggressive acquisition strategy and allows them to act quickly on opportunities, reinforcing their competitive advantage in consolidating the insurance brokerage landscape.
Management acknowledged a 'buyers' market' in property reinsurance with rate decreases in the teens and property pricing down 5%. While casualty remains firm, the significant softening in property cat and primary property lines poses a risk to top-line growth if the trend persists or deepens, potentially pressuring organic growth rates below the 5.5% target.
While management claims integration is ahead of plan, the sheer scale of assimilating Assured Partners (300+ tuck-ins) presents execution risk. The CFO noted that 'unknown M&A' and the rolling impact of lost interest income on funds held for AP will create 'headline noise' in margins during the first half of 2026, which could confuse investors or mask underlying performance temporarily.
The introduction of a new organic growth definition to exclude 'noise' from large life sales and deferred revenue assumptions caused some confusion among analysts regarding consensus comparisons. While management argues this provides better visibility, the complexity of adjusting for these items could lead to volatility in reported figures versus street expectations in the short term.
Overall: Management exhibited a high level of confidence and enthusiasm throughout the call, frequently using superlatives such as 'excellent,' 'terrific,' and 'unstoppable' to describe performance and culture. They were direct and detailed in their responses regarding the Assured Partners integration and organic growth metrics, showing no defensiveness despite analyst questions about market softening or talent retention.
Confidence: HIGH - Management provided specific guidance ranges for 2026 (e.g., 5.5% organic growth, 40-60 bps margin expansion) and detailed integration milestones, demonstrating strong visibility into their business operations. Their language was definitive regarding their ability to execute M&A and maintain margins.
Management projects organic growth of approximately 5.5%, driven by solid client business activity and new business production. This outlook assumes a stable pricing environment excluding property softening.
The company expects underlying brokerage segment margins to expand by 40 to 60 basis points in 2026. This excludes the 'headline noise' from lost interest income on funds held for the Assured Partners acquisition but includes the initial benefits of synergies.
For the Risk Management segment (Gallagher Bassett), organic growth is expected to be around 7%, with adjusted EBITDAC margins forecasted in the 21% to 22% range.
Hedging & Uncertainty: Management used minimal hedging regarding their core performance, often stating definitive numbers like 'around five and a half percent' for organic growth. However, they employed standard forward-looking qualifiers when discussing external factors, such as saying the buyers' market will persist 'absent any outsized current year or prior year loss activity.' They also used temporal hedges regarding synergies, stating they are 'more and more comfortable there could be upside,' which implies confidence while leaving room for adjustment.
Our two-pronged revenue growth strategy, that's organic and M&A, delivered revenue growth of more than 30% during the fourth quarter. - J. Patrick Gallagher, Chairman and CEO
We're not seeing in our numbers any big pullback in casualty pricing. - Douglas K. Howell, CFO
The trusted adviser is more important today because of AI than it was before AI. - J. Patrick Gallagher, Chairman and CEO
We might have close to $10 billion to fund M&A before using any stock at attractive multiples. - Douglas K. Howell, CFO
I think that our customers will be wise. They'll opt back in for more covers... and that will stump the decrease a little bit in property rate declines. - J. Patrick Gallagher, Chairman and CEO
Analyst Sentiment: Analysts were generally inquisitive and focused on understanding the new organic growth metrics and the mechanics of the Assured Partners integration. Questions from firms like Goldman Sachs and Wells Fargo sought clarification on guidance and margin impacts, indicating a need to model the 'noise' correctly. There was skepticism regarding the softening property market and the sustainability of casualty pricing.
Management Responses: Management was highly responsive and detailed, often walking analysts through specific slides in the CFO commentary document. They were transparent about the 'noise' affecting comparability (e.g., lost interest income) and firm in their defense of the culture and retention rates against competitive poaching rumors.
Assured Partners Integration: Analysts asked about the timing of synergies and budgeting for the new entity. Management clarified that synergies would ramp up over the next two years and that integration was ahead of schedule.
Pricing Environment: There was significant focus on the divergence between property and casualty pricing. Management explained that while property is down, casualty remains firm, supporting their organic growth targets.
Organic Growth Definition: Several analysts asked for clarification on the new organic growth calculation which excludes life sales and deferred revenue assumption changes. Management emphasized this provides a clearer view of the underlying business.
AI and Talent: Questions addressed the threat of AI and talent retention. Management dismissed AI as a replacement for brokers, framing it as a tool for efficiency, and stated that retention statistics remain 'dead flat' and stable.
Arthur J. Gallagher & Co. demonstrates exceptional operational resilience and strategic execution, evidenced by its 23rd consecutive quarter of double-digit adjusted EBITDA growth. The company's 'Bedrock' culture and disciplined M&A strategy, highlighted by the successful integration of Assured Partners, provide a durable competitive advantage that allows it to grow earnings regardless of market cycles. Key growth drivers include a robust pipeline of tuck-in acquisitions ($3.5B acquired in 2025) and steady organic growth of 5-6%, supported by a diversified product mix where casualty rate increases offset property softening. Critical factors for success include maintaining the 40-60 bps margin expansion trajectory and realizing the projected $280M in synergies from AP by 2028. While the softening property market and integration complexity pose risks, the company's strong capital position ($10B available for M&A) and proven ability to cross-sell mitigate these concerns. Valuation appears attractive given the double-digit earnings growth visibility and the company's history of shareholder value creation through accretive acquisitions. The recommendation is a BUY based on the company's proven ability to execute on its two-pronged growth strategy and the positive momentum heading into 2026.
The insurance market is experiencing a significant divergence between property and casualty lines. Property rates are decreasing in the 'teens' for reinsurance and down 5% in primary due to a quiet 2025 wind season and ample capacity. Conversely, casualty lines are seeing rate increases of 5-7% as underwriters remain cautious of loss trends and reserve adequacy. This 'tale of two markets' suggests that while the hard market peak has passed for property, systemic inflation and social inflation factors continue to pressure casualty pricing, keeping that segment firm.